EP1726852B1 - Coverpan gasket - Google Patents
Coverpan gasket Download PDFInfo
- Publication number
- EP1726852B1 EP1726852B1 EP06008931A EP06008931A EP1726852B1 EP 1726852 B1 EP1726852 B1 EP 1726852B1 EP 06008931 A EP06008931 A EP 06008931A EP 06008931 A EP06008931 A EP 06008931A EP 1726852 B1 EP1726852 B1 EP 1726852B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gasket
- fasteners
- sealing
- apertures
- sealing system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000003566 sealing material Substances 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
Definitions
- the present invention relates to sealing systems according to the first portion of claim 1.
- US 5 673 920 A and US 6 508 471 B1 disclose gaskets which engage the threads of fasteners.
- EP 0 708 235 A1 discloses a gasket reducing sound.
- Gaskets are used to form seals between components.
- Gaskets typically include a compressible material that forms a seal when compressed between the components.
- a carrier may be disposed within the compressible material to add rigidity to the gasket to help maintain the shape and/or facilitate handling of the gasket.
- a torque-limiting feature is included in the gasket. The torque-limiting feature prevents overcompression of the gasket and preloads the fasteners used to hold the components together. Including the torque-limiting feature in the gasket, however, adds to the cost and complexity of the gasket The torque-limiting feature increases the number of steps required to assemble the gasket and the tooling necessary for the same.
- including the torque-limiting feature can increase the amount of time required to produce each gasket thereby reducing the throughput of the equipment used to make the gaskets with the torque-limiting feature.
- the torque-limiting feature could be removed from the gasket.
- the gasket is aligned with the components so that fasteners can be inserted through one of the components, through openings in the gasket, and into the other component and secured together.
- the aligning of the gasket relative to the components during the assembly of the components can be time consuming.
- the gasket could be preassembled with one of the components and the fasteners. It would be further advantageous if the preassembled component, gasket and fasteners were retained together so that the preassembled component can be shipped from one location to another as an assembly and easily attached to the other component at the final assembly location.
- a sealing system for forming a seal between two components according to claim 1 is disclosed.
- the sealing system includes a plurality of fasteners each having opposite first and second ends with a stem therebetween.
- the stem has a shoulder portion that operates as a torque limiter.
- the system includes a gasket attachable to the fasteners. The apertures in the gasket are configured to fit on the shoulder portion of the fasteners and retain the gasket to the fasteners.
- a gasket according to the teachings of the present invention facilitates the preassembly of a component, a fastener and the gasket together.
- the gasket interlocks on the fasteners to retain the fasteners, the gasket and the component together as an assembly.
- the fastener is utilized to provide the torque-limiting feature thereby freeing the gasket from the necessity of including such a feature therein.
- a gasket according to the principles of the present invention includes an inner perimeter, an outer perimeter and opposite first and second sealing surfaces.
- a carrier is disposed between the first and second sealing surfaces.
- a plurality of apertures between the inner and outer perimeters extend through the first and second sealing surfaces.
- a sealing assembly in yet another aspect of the present invention, includes a cover member having a plurality of openings therethrough. A plurality of fasteners are disposed in the cover opening and extend therethrough. A gasket is disposed on the fasteners with the fasteners extending through apertures in the gasket and one of the sealing surfaces facing the cover member. The gasket apertures engage with the fasteners and retain the cover member, the fasteners and the gasket together as an assembly.
- a sealing system 20 according to the principles of the present invention is shown in Figure 1 .
- Sealing system 20 is operable to seal between first and second components 22, 24, such as a coverpan and differential housing, as shown.
- Sealing system 20 includes a gasket 26, a plurality of fasteners 28 and coverpan 22 which are assembled together to form a sealing assembly 30.
- Gasket 26 has an inner perimeter 32 and an outer perimeter 34. Gasket 26 also has opposite first and second sealing surfaces 36, 38 with a carrier 40 disposed therebetween. First and second sealing surfaces 36, 38 each include a pair of beads or projections 42 that extend axially outwardly therefrom. Sealing surfaces 36, 38 are compressible and form seals against the components that they contact.
- beads 42 are positioned in a desired location on sealing surfaces 36, 38 to provide a seal at a specific location.
- Sealing surfaces 36, 38 are made from a compressible sealing material, such as rubber, an elastomeric polymer compound, such as polyacrylate, silicon, nitrile and like materials or other compounds including injection moldable rubber compounds.
- Carrier 40 is relatively rigid and provides rigidity to gasket 26 and facilitates handling and placement of gasket 26.
- Carrier 40 can be made from a variety of materials.
- carrier 40 can be made from a steel, such as 1010 or 1008, other metals, or a rigid polymeric material.
- Gasket 26 has a plurality of apertures 44 that extend between first and second sealing surfaces 36, 38 and through carrier 40. Apertures 44 are disposed between the pair of beads 42 on each of first and second sealing surfaces 36, 38. Apertures 44 are dimensioned to allow a shoulder portion of fasteners 28 to fit therethrough. Each aperture 44 has a plurality of projections or tabs 46 extending radially inwardly. Tabs 46 engage with a recessed channel in the shoulder portion of fastener 28 to lock or secure gasket 26 to fastener 28, as described below.
- the number of tabs 46 may vary. For example, the number of tabs 46 can be two, as shown in Figure 2 , or three, as shown in Figure 5A , or four, as shown in Figure 5B . It should be appreciated that the number of tabs 46 can be greater than four. Tabs 46 can have a variety of shapes. Preferably, tabs 46 include a curved tip 48 that facilitates engagement with the channel in the shoulder portion of fasteners 28.
- Tabs 46 are preferably formed by portions 50 of carrier 40, as best seen in Figure 4 .
- portions 50' of carrier 40' that form tabs 46' are covered by the sealing material that forms first and second sealing surfaces 36', 38'.
- tabs 46" are formed entirely by the compressible material that forms first and second sealing surfaces 36", 38". The use of the compressible material to entirely form tabs 46" results in less rigid tabs 46" that are more easily deformed when being positioned on a fastener.
- Gasket 26 can be formed by a variety of methods. For example, gasket 26 can be formed by overmolding the sealing material around carrier 40. Alternatively, gasket 26 can be formed by injection molding the sealing material over carrier 40. It should be appreciated that other methods of forming gasket 26 can also be employed.
- Fasteners 28 each have a head portion 56, a threaded portion 58 and a shoulder portion 60 extending therebetween.
- Head portion 56 is configured to be engaged by a tool, such as a socket or wrench, to facilitate rotation of fastener 28.
- Threaded portion 58 is configured to engage with a complementary threaded recess in second component 24 to which first component 22 is to be secured.
- Shoulder portion 60 includes a recessed channel 62 that is dimensioned and positioned on shoulder portion 60 to engage with tabs 46 of gasket 26.
- Channel 62 has an axial height H that is dimensioned to allow tab 46 to fit therein.
- Axial height H is larger than the axial thickness of tab 46 and may allow some play between channel 62 and tab 46.
- Shoulder portion 60 has a diameter greater than the threaded portion 58 and limits the depth to which fastener 28 can be screwed into second component 24.
- Shoulder portion 60 has an axial length L that is dimensioned to provide a desired compressive force on gasket 26 and prevents overcompression of gasket 26.
- Shoulder portion 60 functions as a torque-limiting feature of fastener 28 and results in shoulder portion 60 providing a desired level of compression to gasket 26 and a preloading of fastener 28.
- gasket 26 is positioned adjacent first component 22 with one of the sealing surfaces 36, 38 facing first component 22 and apertures 44 in gasket 26 aligned with openings 66 in first component 22.
- Fasteners 28 are inserted through openings 66 in first component 22 and through apertures 44 in gasket 26.
- the gasket 26 is held in place as each fastener 28 is inserted through an aperture 44 so that tabs 46 deform along shoulder portion 60 and snap or spring into channel 62.
- the engagement of tabs 46 in channel 62 secures gasket 26 to fastener 28. This procedure is continued for each fastener 28.
- the locking feature between tabs 46 and channels 62 secures fasteners 28, first component 22 and gasket 26 together.
- the securing of these components together to form sealing assembly 30 facilitates the final assembly of first component 22 to second component 24.
- the ability to form sealing assembly 30 that securely interconnects first component 22, gasket 26 and fasteners 28 together enables the sealing assembly 30 to be made in a remote location and supplied to the final assembly location (to be attached to second component 24) as a single assembly.
- This ability facilitates the forming of a sealing assembly 30 at a convenient location that may or may not be in the same facility at which the first and second components 22, 24 are sealed together.
- the interlocking feature between tabs 46 and channels 62 of fasteners 28 inhibits separation of the components during movement and/or transport of sealing assembly 30. Sealing assembly 30 can thereby be provided to the final assembly point wherein a worker or automated machine can position sealing assembly 30 adjacent second component 24 thereby facilitating the assembly of first and second components 22, 24 together. This can result in increased throughput.
- apertures 144 do not have any projections or tabs extending radially therein. Rather, apertures 144 have a diameter D that is dimensioned to provide an interference fit with the shoulder portion of the fastener. Additionally, the shoulder portion of the fastener does not need to have a channel therein as there is no projection or tab on aperture 144. Apertures 144 are formed by the sealing material that forms the first and second sealing surfaces 136, 138. The interference fit between aperture 144 and the shoulder portion of the fastener retains the first component, the fastener and the gasket 126 together to form a sealing assembly. In this embodiment, the assembly is essentially the same as that described above with gasket 126 being held in place as the fasteners are inserted through apertures 144 against the force of the interference fit.
- gasket 26 may exclude a carrier 40, although all the benefits and features of the present invention may not be realized.
- the entirety of carrier 40 may be encapsulated within the sealing material that forms the first and second sealing surfaces 36, 38.
- more than one type of material can be used to form first and second sealing surfaces 36, 38.
- the use of beads or projections 42 may also be eliminated, depending upon the design of the components to be sealed, although all the benefits and features of the present invention may not be realized.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Sealing Devices (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
- The present invention relates to sealing systems according to the first portion of claim 1.
-
US 5 673 920 A andUS 6 508 471 B1 disclose gaskets which engage the threads of fasteners.EP 0 708 235 A1 discloses a gasket reducing sound. - Gaskets are used to form seals between components. Gaskets typically include a compressible material that forms a seal when compressed between the components. A carrier may be disposed within the compressible material to add rigidity to the gasket to help maintain the shape and/or facilitate handling of the gasket. In some applications, such as on coverpans, a torque-limiting feature is included in the gasket. The torque-limiting feature prevents overcompression of the gasket and preloads the fasteners used to hold the components together. Including the torque-limiting feature in the gasket, however, adds to the cost and complexity of the gasket The torque-limiting feature increases the number of steps required to assemble the gasket and the tooling necessary for the same. Furthermore, including the torque-limiting feature can increase the amount of time required to produce each gasket thereby reducing the throughput of the equipment used to make the gaskets with the torque-limiting feature. Thus, it would be advantageous if the torque-limiting feature could be removed from the gasket.
- During the assembly of the components to be sealed by the gasket, the gasket is aligned with the components so that fasteners can be inserted through one of the components, through openings in the gasket, and into the other component and secured together. The aligning of the gasket relative to the components during the assembly of the components can be time consuming. Thus, it would be advantageous if the gasket could be preassembled with one of the components and the fasteners. It would be further advantageous if the preassembled component, gasket and fasteners were retained together so that the preassembled component can be shipped from one location to another as an assembly and easily attached to the other component at the final assembly location.
- In the present invention, a sealing system for forming a seal between two components according to claim 1 is disclosed.
- The sealing system includes a plurality of fasteners each having opposite first and second ends with a stem therebetween. The stem has a shoulder portion that operates as a torque limiter. The system includes a gasket attachable to the fasteners. The apertures in the gasket are configured to fit on the shoulder portion of the fasteners and retain the gasket to the fasteners.
- A gasket according to the teachings of the present invention facilitates the preassembly of a component, a fastener and the gasket together. The gasket interlocks on the fasteners to retain the fasteners, the gasket and the component together as an assembly. The fastener is utilized to provide the torque-limiting feature thereby freeing the gasket from the necessity of including such a feature therein.
- A gasket according to the principles of the present invention includes an inner perimeter, an outer perimeter and opposite first and second sealing surfaces.
- A carrier is disposed between the first and second sealing surfaces. A plurality of apertures between the inner and outer perimeters extend through the first and second sealing surfaces. There is at least one projection extending into the apertures.
- In yet another aspect of the present invention, a sealing assembly is disclosed. The sealing assembly includes a cover member having a plurality of openings therethrough. A plurality of fasteners are disposed in the cover opening and extend therethrough. A gasket is disposed on the fasteners with the fasteners extending through apertures in the gasket and one of the sealing surfaces facing the cover member. The gasket apertures engage with the fasteners and retain the cover member, the fasteners and the gasket together as an assembly.
- Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
- The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein:
-
Figure 1 is a perspective view of a sealing system according to the principles of the present invention being used to seal a coverpan to a differential housing; -
Figure 2 is a top plan view of a gasket of the sealing system ofFigure 1 ; -
Figure 3 is a cross-sectional view of the gasket ofFigure 2 along lines 3-3; -
Figure 4 is a cross-sectional view of the gasket ofFigure 2 along lines 4-4; -
Figures 5A and B are alternate configurations for the apertures of the gasket ofFigure 2 ; -
Figure 6 is a fragmented partial cross-sectional view of the sealing assembly ofFigure 1 sealing the coverpan to the differential housing; -
Figure 7A is a cross-sectional view of a first alternate embodiment of the gasket ofFigure 2 along lines 4-4; -
Figure 7B is a cross-sectional view of a second alternate embodiment of the gasket ofFigure 2 along lines 4-4; and -
Figure 7C is a cross-sectional view of a third alternate embodiment of the gasket ofFigure 2 along lines 4-4. - The following description of the preferred embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
- A
sealing system 20 according to the principles of the present invention is shown inFigure 1 .Sealing system 20 is operable to seal between first andsecond components Sealing system 20 includes agasket 26, a plurality offasteners 28 andcoverpan 22 which are assembled together to form asealing assembly 30. - Referring now to
Figures 2-4 , details ofgasket 26 are shown.Gasket 26 has aninner perimeter 32 and anouter perimeter 34. Gasket 26 also has opposite first andsecond sealing surfaces carrier 40 disposed therebetween. First andsecond sealing surfaces projections 42 that extend axially outwardly therefrom.Sealing surfaces - Specifically,
beads 42 are positioned in a desired location on sealingsurfaces Sealing surfaces Carrier 40 is relatively rigid and provides rigidity to gasket 26 and facilitates handling and placement ofgasket 26.Carrier 40 can be made from a variety of materials. For example,carrier 40 can be made from a steel, such as 1010 or 1008, other metals, or a rigid polymeric material. - Gasket 26 has a plurality of
apertures 44 that extend between first andsecond sealing surfaces carrier 40.Apertures 44 are disposed between the pair ofbeads 42 on each of first and second sealing surfaces 36, 38.Apertures 44 are dimensioned to allow a shoulder portion offasteners 28 to fit therethrough. Eachaperture 44 has a plurality of projections ortabs 46 extending radially inwardly.Tabs 46 engage with a recessed channel in the shoulder portion offastener 28 to lock orsecure gasket 26 tofastener 28, as described below. The number oftabs 46 may vary. For example, the number oftabs 46 can be two, as shown inFigure 2 , or three, as shown inFigure 5A , or four, as shown inFigure 5B . It should be appreciated that the number oftabs 46 can be greater than four.Tabs 46 can have a variety of shapes. Preferably,tabs 46 include acurved tip 48 that facilitates engagement with the channel in the shoulder portion offasteners 28. -
Tabs 46 are preferably formed byportions 50 ofcarrier 40, as best seen inFigure 4 . In a first alternate embodiment, as shown inFigure 7A , portions 50' of carrier 40' thatform tabs 46' are covered by the sealing material that forms first and second sealing surfaces 36', 38'. In a second alternate embodiment, as shown inFigure 7B ,tabs 46" are formed entirely by the compressible material that forms first and second sealing surfaces 36", 38". The use of the compressible material to entirely formtabs 46" results in lessrigid tabs 46" that are more easily deformed when being positioned on a fastener. -
Gasket 26 can be formed by a variety of methods. For example,gasket 26 can be formed by overmolding the sealing material aroundcarrier 40. Alternatively,gasket 26 can be formed by injection molding the sealing material overcarrier 40. It should be appreciated that other methods of forminggasket 26 can also be employed. - Referring now to
Figure 6 , details offasteners 28 and the locking engagement withgasket 26 are shown.Fasteners 28 each have ahead portion 56, a threadedportion 58 and ashoulder portion 60 extending therebetween.Head portion 56 is configured to be engaged by a tool, such as a socket or wrench, to facilitate rotation offastener 28. Threadedportion 58 is configured to engage with a complementary threaded recess insecond component 24 to whichfirst component 22 is to be secured.Shoulder portion 60 includes a recessedchannel 62 that is dimensioned and positioned onshoulder portion 60 to engage withtabs 46 ofgasket 26.Channel 62 has an axial height H that is dimensioned to allowtab 46 to fit therein. Axial height H is larger than the axial thickness oftab 46 and may allow some play betweenchannel 62 andtab 46.Shoulder portion 60 has a diameter greater than the threadedportion 58 and limits the depth to whichfastener 28 can be screwed intosecond component 24.Shoulder portion 60 has an axial length L that is dimensioned to provide a desired compressive force ongasket 26 and prevents overcompression ofgasket 26.Shoulder portion 60 functions as a torque-limiting feature offastener 28 and results inshoulder portion 60 providing a desired level of compression to gasket 26 and a preloading offastener 28. Whengasket 26 is positioned onfasteners 28,tabs 46 extends intochannel 62 thereby locking or securinggasket 26 andfastener 28 together. - To form sealing
assembly 30,gasket 26 is positioned adjacentfirst component 22 with one of the sealing surfaces 36, 38 facingfirst component 22 andapertures 44 ingasket 26 aligned withopenings 66 infirst component 22.Fasteners 28 are inserted throughopenings 66 infirst component 22 and throughapertures 44 ingasket 26. Thegasket 26 is held in place as eachfastener 28 is inserted through anaperture 44 so thattabs 46 deform alongshoulder portion 60 and snap or spring intochannel 62. The engagement oftabs 46 inchannel 62 securesgasket 26 tofastener 28. This procedure is continued for eachfastener 28. - The locking feature between
tabs 46 andchannels 62 securesfasteners 28,first component 22 andgasket 26 together. The securing of these components together to form sealingassembly 30 facilitates the final assembly offirst component 22 tosecond component 24. Specifically, the ability to form sealingassembly 30 that securely interconnectsfirst component 22,gasket 26 andfasteners 28 together enables the sealingassembly 30 to be made in a remote location and supplied to the final assembly location (to be attached to second component 24) as a single assembly. This ability facilitates the forming of a sealingassembly 30 at a convenient location that may or may not be in the same facility at which the first andsecond components tabs 46 andchannels 62 offasteners 28 inhibits separation of the components during movement and/or transport of sealingassembly 30. Sealingassembly 30 can thereby be provided to the final assembly point wherein a worker or automated machine can position sealingassembly 30 adjacentsecond component 24 thereby facilitating the assembly of first andsecond components - In a third alternate embodiment, as shown in
Figure 7C ,apertures 144 do not have any projections or tabs extending radially therein. Rather,apertures 144 have a diameter D that is dimensioned to provide an interference fit with the shoulder portion of the fastener. Additionally, the shoulder portion of the fastener does not need to have a channel therein as there is no projection or tab onaperture 144.Apertures 144 are formed by the sealing material that forms the first and second sealing surfaces 136, 138. The interference fit betweenaperture 144 and the shoulder portion of the fastener retains the first component, the fastener and thegasket 126 together to form a sealing assembly. In this embodiment, the assembly is essentially the same as that described above withgasket 126 being held in place as the fasteners are inserted throughapertures 144 against the force of the interference fit. - While the present invention has been described with reference to specific examples, dimensions and orientations, it should be appreciated that variations can be employed without departing from the scope of the present invention as defined by the claims. For example,
gasket 26 may exclude acarrier 40, although all the benefits and features of the present invention may not be realized. Furthermore, the entirety ofcarrier 40 may be encapsulated within the sealing material that forms the first and second sealing surfaces 36, 38. Moreover, more than one type of material can be used to form first and second sealing surfaces 36, 38. Additionally, the use of beads orprojections 42 may also be eliminated, depending upon the design of the components to be sealed, although all the benefits and features of the present invention may not be realized.
Claims (15)
- A sealing system (20) for forming a seal between two components (22, 24), the sealing system (20) comprising:(a) a plurality of fasteners (28) each having opposite first and second ends with a stem therebetween, the stem having a shoulder portion (60) that operates as a torque limiter; and(b) a gasket (26) attachable to the fasteners (28), the gasket (26) comprising:(i) an inner perimeter (32);(ii) an outer perimeter (34);(iii) opposite first and second sealing surfaces (36, 38); and(iv) a plurality of apertures (44) between the inner and outer perimeters (32, 34), the apertures (44) extending through the first and second sealing surfaces (36, 38), and the apertures (44) configured to fit on the shoulder portion (60) of the fasteners (28) and retain the gasket (26) to the fasteners (28), characterized in that,the shoulder portions (60) of the fasteners (28) have a recessed groove (62), at least one projection (46) extends into the gasket apertures (44), and the at least one projection (46) engages with the recessed groove (62) to retain the gasket (26) to the fastener (28).
- The sealing system of claim 1, wherein the gasket (26) comprises a carrier (40) disposed between said first and second sealing surfaces (36, 38).
- The sealing system of claim 2, wherein portions (50) of the carrier (40) extend into the apertures (44) and form the at least one projection (46).
- The sealing system of claim 2 or 3, wherein the first and second sealing surfaces (36, 38) cover the portions (50) of the carrier (40) that form the at least one projection (46).
- The sealing system of one of the claims 2 to 4, wherein the first and second sealing surfaces (36, 38) comprise a compressible material.
- The sealing system of claim 2, wherein the first and second sealing surfaces (36, 38) comprise a compressible material and the compressible material extends into the apertures (44) and forms the at least one projection (46).
- The sealing system of one of the claims 2 to 6, wherein the at least one projection (46) comprises two or more projections (46).
- The sealing system of one of the claims 2 to 7, wherein the at least one projection (46) is generally frustoconical shaped in plan view.
- The sealing system of one of the claims 2 to 8, wherein the carrier (40) comprises a metal.
- The sealing system of one of the claims 2 to 9, wherein a set of at least two spaced apart sealing bumps (42) extend outwardly from each of the sealing surfaces (36, 38) and the apertures (44) are disposed between each set of sealing bumps (42).
- The sealing system of one of the claims 1 to 10, wherein the apertures (44) have a diameter sized to provide an interference fit with the shoulder portions (60) of the fasteners (28) and the interference fit retains the gasket (26) to the fastener (28).
- The sealing system of one of the claim 1 to 11, further comprising a cover having a plurality of openings, the cover, the fasteners (28) and the gasket (26) being attached together and forming a preassembly with the fasteners (28) disposed in the cover openings and extending therethrough, the gasket (26) disposed on the fasteners (28) with the gasket apertures (44) engaged with the shoulder portions (60) of the fasteners (28) and the engagement between the fasteners (28) and the gasket (26) holding the preassembly together.
- A sealing assembly comprising a sealing system according to claim 12, comprising a cover member having a plurality of openings therethrough, a plurality of fasteners (28) disposed in the cover openings and extending therethrough and a gasket (26) having opposite first and second sealing surfaces (36, 38) and a plurality of apertures (44) extending therethrough, the gasket (26) disposed on the fasteners (28) with the fasteners (28) extending through the gasket apertures (44) and one of the sealing surfaces (36, 38) facing the cover member, the gasket apertures (44) engaging with the fasteners (28) and retaining the cover member, the fasteners (28) and the gasket (26) together as an assembly.
- The sealing assembly of claim 13, wherein the fasteners (28) have opposite first and second ends with a stem therebetween and the stem has a shoulder portion (60) that operates as a torque limiter.
- The sealing assembly of claim 13 or 14, wherein the gasket apertures (44) are dimensioned to provide an interference fit with the fasteners (28) and the interference fit retains the cover member, the fasteners (28) and the gasket (26) together as an assembly.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/137,191 US20060267293A1 (en) | 2005-05-25 | 2005-05-25 | Coverpan gasket |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1726852A2 EP1726852A2 (en) | 2006-11-29 |
EP1726852A3 EP1726852A3 (en) | 2008-02-27 |
EP1726852B1 true EP1726852B1 (en) | 2011-07-27 |
Family
ID=36930280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06008931A Active EP1726852B1 (en) | 2005-05-25 | 2006-04-28 | Coverpan gasket |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060267293A1 (en) |
EP (1) | EP1726852B1 (en) |
AT (1) | ATE518081T1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US20080083800A1 (en) * | 2006-10-10 | 2008-04-10 | Mathson Industries | Roof railing assembly |
US7850055B2 (en) * | 2007-03-15 | 2010-12-14 | Black & Decker Inc. | Assembly having gasket resistant to side loading by pressurized fluid |
US9447882B2 (en) | 2008-04-17 | 2016-09-20 | Parker-Hannifin Corporation | Compression-limited gasket construction |
EP3236114A1 (en) * | 2016-04-19 | 2017-10-25 | Siemens Aktiengesellschaft | Seal for devices in the food and luxury food industry |
CN206237710U (en) * | 2016-10-27 | 2017-06-09 | 丽宝大数据股份有限公司 | Case of electronic device waterproof construction |
WO2018169687A1 (en) * | 2017-03-16 | 2018-09-20 | ASSA ABLOY Residential Group, Inc. | Gasket system for an electromechanical lock |
JP6547237B1 (en) * | 2019-02-26 | 2019-07-24 | 千住金属工業株式会社 | Soldering apparatus and method for fixing packing to soldering apparatus |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US4405138A (en) * | 1982-09-27 | 1983-09-20 | Ex-Cell-O Corporation | Engine gasket assembly |
US5544902A (en) * | 1994-06-30 | 1996-08-13 | Dana Corporation | Metal gasket with bolt retention freature |
DE4437341C2 (en) * | 1994-10-19 | 1997-07-31 | Ford Werke Ag | Fastening arrangement for covers on machines |
US5673920A (en) * | 1996-09-16 | 1997-10-07 | Fel-Pro Incorporated | Gasket bolt hole with retaining beam and slot |
JP3455385B2 (en) * | 1996-12-27 | 2003-10-14 | 石川ガスケット株式会社 | gasket |
EP0860602B1 (en) * | 1997-02-21 | 2001-11-21 | Dichtungstechnik G. Bruss GmbH & Co. KG | Method for making a cylinder head cover for an internal combustion engine and cylinder head cover |
DE29811346U1 (en) * | 1998-06-25 | 1998-10-08 | Elring Klinger GmbH, 72581 Dettingen | Flat gasket |
US6508471B1 (en) * | 1999-01-08 | 2003-01-21 | Shiloh Industries, Inc. | Gasket with molded-in bolt retention means |
US6386593B1 (en) * | 1999-10-29 | 2002-05-14 | Automotive Fluid Systems, Inc. | Dual-plane seal for fluid-tight conduit connection |
DE10100934C1 (en) * | 2001-01-10 | 2002-02-28 | Freudenberg Carl Kg | Gas-tight cylinder head fitting arrangement for IC engine has sealing ribs and elastic fixings cooperating to allow oscillating relative movement between air intake and cylinder head gasket |
US6533287B1 (en) * | 2001-11-21 | 2003-03-18 | Dana Corporation | Bolt retention mechanism for MLS gasket |
US7241246B2 (en) * | 2004-11-18 | 2007-07-10 | American Axle & Manufacturing, Inc. | Differential assembly with cover gasket having integral magnet |
-
2005
- 2005-05-25 US US11/137,191 patent/US20060267293A1/en not_active Abandoned
-
2006
- 2006-04-28 EP EP06008931A patent/EP1726852B1/en active Active
- 2006-04-28 AT AT06008931T patent/ATE518081T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE518081T1 (en) | 2011-08-15 |
US20060267293A1 (en) | 2006-11-30 |
EP1726852A2 (en) | 2006-11-29 |
EP1726852A3 (en) | 2008-02-27 |
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